Hengxiang WSN49 Bearingless Off-Axis Hollow Magnetic Incremental Encoder (9 to 30 mm bore)
Chinese factory-direct bearingless hollow magnetic encoder that slips over a 9 to 30 mm motor shaft, up to 8,192 PPR TTL/HTL; a low-cost motor-side incremental option for hollow joint motors.
Specifications
| Resolution | up to 8,192 PPR incremental (not absolute) |
|---|---|
| Accuracy | max error ±0.3° |
| Max speed | 18,000 rpm |
| Interface | Incremental TTL (5 V) or HTL (8 to 30 V) |
| Form | hollow-shaft module: bearingless off-axis readhead + magnetic ring |
| Sensing | magnetic (type not stated) |
| Supply | DC 5 V ±5 % (TTL) or DC 8 to 30 V (HTL) |
| Bore / ring ID | 9 to 30 mm (page also says 9 to 28 mm) |
| Operating temp | -40 to +100 °C |
Who makes it
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 9031.80.80.85 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Sources
- https://www.shhxgd.com/WSN49-maintenance-free-off-axis-Bearing-less-Magnetic-Encoder-Hollow-Shaft-highest-motor-speed-18000-rpm-pd507622458.htmlmaker page: specs (doc WSN49-E-01100216 Ver 1.0), image, MOQ 1, price 'Negotiate'
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.